Bobbin



I (No Model.) D. P. MILLS.

BOBBIN.

No. 407,831. Patented July 80, 1889.

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N. PETERS Phnlo-Ulhoghpher, Washinglon. ll;

UNIT D STATES ATENT OFFICE.

DIVIGHT P. MILLS, OF NAUGATUCK, CONNECTICUT.

BOBBIN.

SPECIFICATION forming part of Letters Patent No. 407,831, dated July 30, 1889.

Application filed April 17, 1888. $erial No. 270,970- (No model.)

To aZZ whom it may concern:

Be it known that I, DWIGHT P. HILLS, a citizen of the United States, residing at Naugatuck, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Bobbins, which improvements are fully set forth and described in the following specification,reference being had to the accompanying sheet of drawings, in which- Figure 1 is an end view of a bobbin of my new construction. Fig. 2 is a longitudinal sectional view of the same on linear cc of Fig.1. Fig. 3 is a longitudinal sectional view of another form of my invention described in detail hereinafter. In Fig. 4: I have shown a modification of my device in which the headsection is formed of two disks of card-board or similar material, the bottom or outer one being slitted from the center outward, said slitted port-ions g being bent up through a corresponding hole in the upper disk and glued to the barrel of thebobbin, as also illustrated in Fig. 5, which is a sectional view of Fig. 4 on line y y.

The object of this invention is to provide a light, cheap, and serviceable bobbin or spool of that class made conical or tapered for the purpose of more readily shedding the yarn as it is drawn off from the small end of said bobbins. To this end I have produced a bobbin with a barrel or body portion formed from straw-board or card-board, and a head or flange either of the same material or of wood, the material adopted for said head being varied according to the particular service said bobbin is to perform.

Referring to Figs. 1 and 2 of the drawings, the letter a denotes the barrel of my new form of bobbin, and b a flange or head composed of thin wood glued up with the grain of each section running at an angle tothat of the companion sections, thus effectually overcoming any tendency to warp or break. The disk or plate thus made is provided with a tapered opening that corresponds in diameter and pitch-with the diameter and pitch of the base of the cone-shaped barrel (1, so that when said barrel is slipped into said tapered hole its large end finds a seat in the head Z), as is clearly illustrated in Fig. 2 of the drawings. To prevent the accidental separation of the barrel and head when thus assembled, I provide a plug 0 of the same taper as the parts above described, and force said plug into the large end or base of barrel (1, (see Fig. 2,) which action firmly wedges the barrel in place in the head-section. When a barrel-section becomes broken and unfit for further use, it may be quickly removed and a new one substituted by simply knocking out the wedge c. In order to guard against the accidental loosening of said wedge c, a locking device made as follows may also be used: Said device is formed of spring-wire doubled back upon itself and swelled at the bend to provide a head or loop (7., that is somewhat larger than the hole in the small end of barrel a. The free ends of the wire thus formed are then bent outward in opposite directions, as at (1, substantially at a right angle to the main wires. lVhen this wire locking device is to be used, the plug or wedge c is formed with a central opening large enough to allow the passage of the bent ends (1 and with radial channels e 6, into which channels said bent ends may be drawn. To attach this locking device to a bobbin, it is only necessary to spring the bent ends together and pass them through both barrel a, and wedge 0, when the spring of the wire spreads said ends and they enter channels 6. While said locking-wire is in this position it forms a perfect toggle to prevent wedge c from leaving its seat in the barrel. As a rule, this locking-wire is not necessary, but may be added when the bobbin is under such hard usage that the wedge c is likely to become displaced. I

In the bobbin shown in Fig. 3 a cone-shaped flange or head I), made of straw-board or card-board, is used, instead of the Wooden head first above described. This head I) is formed with a flange 11 corresponding in diameter and pitch with the large end of the barrelsection, and said barrel-section is drawn into said tapered seat and then fastened in place by a wedge, the same as the wedge c in the other figures. When used as a cop-tube, the yarn wound on the barrel would prevent the displacement of the head, so that gluing would be unnecessary.

The construction .of the head and barrel sections of the bobbin illustrated in Figs. 4 and 5 is clearly described in the reference to said figures at the beginning of my specification. The Wedge c and'su pplemental lockingwire d 01', when used in this form of bobbin, are the same in construction and results as When used With a Wooden-head bobbin, as

' first above described. I thus provide a very said opening, and a correspondingly-tapered Wedge seated in the large end of said body, as set forth, a supplemental lock or toggle formed of Wire having one end spread to engage the small end of the barrel and the opposite ends bent to interlock With the said Wedge, all being substantially as and for the 20 objects specified.

DWIGHT P. MILLS.

Witnesses:

A. H. DAYTON, F. R. NIcHOLs. 

